Photographic developing-tank.



No. 673,295. Patented Apr. 30, [90L C. SEGNA.

PHOTOGRAPHIC DEVELOPING'TANK.

(Application filed Eu. 5, 19 00.)

(No Iudol.)

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UNITED STATES PATENT ()FFICE.

CARL SEGNA, OF BROOKLYN, NEW YORK, ASSIGNOR OF ONE-HALF TO LEOPOLD J. KIDDLE,

OF NEW YORK, N. Y.

SPECIFICATION forming part of Letters Patent No. 673,295, dated April 30, 1901.

Application filed March 5, 1900. Serial No. 7,309. (No model!) a tank for holding a developing or fixing so lution constructed in such a manner as to retain the plate in an upright or vertical position and at the same time permit a free inspection of the plate during'its manipulation without the necessity of removing it from the bath until the developing or fixing is completed.

To attain the desired end, my invention consists, essentially, in a narrow vertical tank, made of suitable transparent or semitransparent material, so constructed as to retain a plate in a vertical position during developing or fixing, and my invention also involves certain novel and useful combinations or arrangements of parts and peculiarities of construction, all of which will be hereinafter first fully described and then pointed out in the claim.

In the accompanying drawings, forming a part hereof, Figure 1 is a side elevation of a developing-tank embodying my invention, and Fig. 2 is a plan View thereof. Fig. 3 is an end elevation of the tank removed from its support.

Similar numerals of reference wherever they occur indicate corresponding parts in all the figures.

1 is the body of the tank, which may be made of transparent, ruby, or yellow glass. This tank is open at the top and is provided with a lip 2 at each end for convenience in emptying, and with central enlargements 3, in order to conveniently reach a plate when in the bath.

At 4 in each end of the tank-body 1 is formed a depression for the reception of an arm 5 extending from a supporting-base 6.

7 represents side arms extending from the base.

By' providing a tank wherein the plate is held in a vertical position within the hath no air-bubbles can form and all parts of the plate must come in intimate contact with the bath and the tank may be rocked without danger of spilling the liquid therein. As the tank is made of transparent, ruby, or yellow glass, as desired, the progress of developing, &c., can be closely followed by holding the tank between the eye and the light and the state of development accurately determined without removing the plate from the bath or touching it with the fingers.

Having now fully described my invention,

what I claim as new therein, and desire to secure by Letters Patent, is- Asa new article of manufacture, a photographic developing-tank in which is comprised a body 1, open at the top and having a central enlargement 3 at each side, a depression 4 in the exterior of each end of the tank-body, and a supporting-base 6 provided with arms 5 and 7.

Signed by me at Brooklyn, New York, this 14th day of February, 1900. i

' CARL SEGNA. Witnesses:

A. M. PIERCE,

S. S. BRADSHAW. 

